Justification:
The Smooth Falkland Daisy is widespread and occasional across the archipelago and although subpopulations occur at a lower densities wherever grazing is present, this is not considered a significant threat and the species is assessed as Least Concern.

Population data does not exist for many of the records available for this species but extrapolating from those data available it is estimated that the population of S. vaginatus consists of over 3,000 mature individuals.

S. vaginatus is a biennial and predominantly found within acid grassland and dwarf shrub heath but also grows within Blechnum penna-marina fern beds, inland rock, maritime cliff and slope and Tussac. Found across an altitudinal range of 0-362 m.

Ex situ Conservation:Seed from this species is stored in Kew's Millennium Seed Bank.DNA samples are banked and stored at the Royal Botanic Gardens Kew.In situ Conservation:The species is reported to occur in protected areas.